An Oversubscription Privilege is a right (most common in rights offerings and certain securities structures) that allows an investor who exercised their basic subscription rights to purchase additional securities that remain unsubscribed, typically pro rata among those requesting extra. In offerings, Oversubscription Privilege helps ensure the issuer can raise the full amount while rewarding supportive holders, and the Oversubscription Privilege mechanics are defined in the offering documents and allocation rules.
